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IltmmConvert::EstimateOutputBitRate

#include "ltmm.h"

C Syntax	HRESULT IltmmConvert_EstimateOutputBitRate(pConvert, pBitRate)
C++ Syntax	HRESULT EstimateOutputBitRate(pBitRate)

 

IltmmConvert *pConvert;	/* pointer to an interface */
long *pBitRate;	/* pointer to a variable */

Retrieves the estimated conversion output bit rate, in bits per second.

Parameter	Description
pConvert	Pointer to an IltmmConvert interface.
pBitRate	Pointer to a variable to be updated with the estimated output bit rate.

Returns

S_OK	The function was successful.
<> S_OK	An error occurred. Refer to the Error Codes or the HRESULT error codes in the DirectShow documentation.

Comments

The returned bit rate depends on the state of the convert object.

If the object is in the running state, the returned bit rate is related to the actual number of bytes that have been written.

While if the object is not running, the returned bit rate is a theoretical value dependent on the conversion settings and the chosen encoding settings.

Required DLLs and Libraries

LTMM For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

Platforms

Win32, x64

See Also

Functions:	IltmmConvert::EstimateOutputSize
Topics:	Multimedia Function Group

Example

For a C example, refer to IltmmConvert::EstimateOutputBitRate Example for C.

For a C++ example, refer to IltmmConvert::EstimateOutputBitRate Example for C++.